diff --git a/services/loopevent/loop/le_epoll.c b/services/loopevent/loop/le_epoll.c
index a47134de960250cda205eb28c17c928260ca3c77..947695e3a75f4fef6766046dd86f4024f2d97366 100644
--- a/services/loopevent/loop/le_epoll.c
+++ b/services/loopevent/loop/le_epoll.c
@@ -16,7 +16,6 @@
 #include <errno.h>
 
 #include "le_epoll.h"
-#include "le_utils.h"
 
 static int IsValid_(const EventEpoll *loop)
 {
@@ -139,4 +138,4 @@ LE_STATUS CreateEpollLoop(EventLoop **loop, uint32_t maxevents, uint32_t timeout
     epoll->loop.addEvent = AddEvent_;
     epoll->loop.modEvent = ModEvent_;
     return LE_SUCCESS;
-}
\ No newline at end of file
+}
diff --git a/services/modules/init_eng/init_eng.c b/services/modules/init_eng/init_eng.c
index 9b365963af874df781bae2a0963ee06eef624978..921c43d36bb53e1ccb10788268f9d0aeaa3fc414 100644
--- a/services/modules/init_eng/init_eng.c
+++ b/services/modules/init_eng/init_eng.c
@@ -72,7 +72,6 @@ ENG_STATIC void BuildMountCmd(char *buffer, size_t len, const char *mp, const ch
 {
     int ret = snprintf_s(buffer, len, len - 1, "%s %s %s ro barrier=1",
         fstype, dev, mp);
-
     if (ret == -1) {
         *buffer = '\0';
     }
diff --git a/services/utils/init_utils.c b/services/utils/init_utils.c
index d1e545915631fd7d75d67ad239d78d42892c024c..7d05fda07c0b73aaee529d0397855c195fbefeff 100644
--- a/services/utils/init_utils.c
+++ b/services/utils/init_utils.c
@@ -206,6 +206,7 @@ int IterateNameValuePairs(const char *src, void (*iterator)(const NAME_VALUE_PAI
 {
     int cnt = 0;
     const char *seperator;
+    const char *tmp = src;
     NAME_VALUE_PAIR nv;
     if ((src == NULL) || (iterator == NULL)) {
         return -1;
@@ -213,15 +214,15 @@ int IterateNameValuePairs(const char *src, void (*iterator)(const NAME_VALUE_PAI
 
     do {
         // Find space seperator
-        nv.name = src;
-        seperator = strchr(src, ' ');
+        nv.name = tmp;
+        seperator = strchr(tmp, ' ');
         if (seperator == NULL) {
             // Last nv
-            nv.valueEnd = src + strlen(src);
-            src = NULL;
+            nv.valueEnd = tmp + strlen(tmp);
+            tmp = NULL;
         } else {
             nv.valueEnd = seperator;
-            src = seperator + 1;
+            tmp = seperator + 1;
         }
 
         // Find equal seperator
@@ -239,7 +240,7 @@ int IterateNameValuePairs(const char *src, void (*iterator)(const NAME_VALUE_PAI
 
         iterator(&nv, context);
         cnt += 1;
-    } while (src != NULL);
+    } while (tmp != NULL);
 
     return cnt;
 }
diff --git a/test/fuzztest/DoFormat_fuzzer/DoFormat_fuzzer.cpp b/test/fuzztest/DoFormat_fuzzer/DoFormat_fuzzer.cpp
index e52f02de64144911de910bab84d30d9935ae52c2..745b7d4b3736049bbc5158323bc6524fc80b3b51 100644
--- a/test/fuzztest/DoFormat_fuzzer/DoFormat_fuzzer.cpp
+++ b/test/fuzztest/DoFormat_fuzzer/DoFormat_fuzzer.cpp
@@ -13,8 +13,6 @@
  * limitations under the License.
  */
 
-#include "DoFormat_fuzzer.h"
-#include <iostream>
 #include <string>
 #include "fs_manager/fs_manager.h"
 
diff --git a/test/fuzztest/GetMountStatusForMountPoint_fuzzer/GetMountStatusForMountPoint_fuzzer.cpp b/test/fuzztest/GetMountStatusForMountPoint_fuzzer/GetMountStatusForMountPoint_fuzzer.cpp
index 93d783c1399ea0679773fb925c42596a8c3346fb..e627188f436788e0e98cc592def6d272a2cb967b 100644
--- a/test/fuzztest/GetMountStatusForMountPoint_fuzzer/GetMountStatusForMountPoint_fuzzer.cpp
+++ b/test/fuzztest/GetMountStatusForMountPoint_fuzzer/GetMountStatusForMountPoint_fuzzer.cpp
@@ -14,7 +14,6 @@
  */
 
 #include "GetMountStatusForMountPoint_fuzzer.h"
-#include <iostream>
 #include <string>
 #include "fs_manager/fs_manager.h"
 
diff --git a/test/fuzztest/IsSupportedFilesystem_fuzzer/IsSupportedFilesystem_fuzzer.cpp b/test/fuzztest/IsSupportedFilesystem_fuzzer/IsSupportedFilesystem_fuzzer.cpp
index 07ddd54f4a2cde1a093a640168ce2fea3ace5706..900d944d67083c50954e52d92975871743498218 100644
--- a/test/fuzztest/IsSupportedFilesystem_fuzzer/IsSupportedFilesystem_fuzzer.cpp
+++ b/test/fuzztest/IsSupportedFilesystem_fuzzer/IsSupportedFilesystem_fuzzer.cpp
@@ -14,7 +14,6 @@
  */
 
 #include "IsSupportedFilesystem_fuzzer.h"
-#include <iostream>
 #include <string>
 #include "fs_manager/fs_manager.h"
 
diff --git a/test/fuzztest/LoadFscryptPolicy_fuzzer/LoadFscryptPolicy_fuzzer.cpp b/test/fuzztest/LoadFscryptPolicy_fuzzer/LoadFscryptPolicy_fuzzer.cpp
index 50d2f10cb57574581336d07749bfc33674de9ffe..c5a5334a5890da45f6457b96590f5d58fbea1078 100644
--- a/test/fuzztest/LoadFscryptPolicy_fuzzer/LoadFscryptPolicy_fuzzer.cpp
+++ b/test/fuzztest/LoadFscryptPolicy_fuzzer/LoadFscryptPolicy_fuzzer.cpp
@@ -14,7 +14,6 @@
  */
 
 #include "LoadFscryptPolicy_fuzzer.h"
-#include <iostream>
 #include "fs_manager/fs_manager.h"
 
 namespace OHOS {
diff --git a/test/unittest/deviceinfo/DeviceInfoUnittest.cpp b/test/unittest/deviceinfo/DeviceInfoUnittest.cpp
index 114c232a4ab0475789155f3d0b88b1e2e2481374..7fe745df64e10627fa6aef21051b450e8a950739 100644
--- a/test/unittest/deviceinfo/DeviceInfoUnittest.cpp
+++ b/test/unittest/deviceinfo/DeviceInfoUnittest.cpp
@@ -36,7 +36,7 @@ using namespace testing::ext;
 using namespace std;
 using namespace OHOS;
 
-int g_tokenType = OHOS::Security::AccessToken::TOKEN_HAP;
+static int g_tokenType = OHOS::Security::AccessToken::TOKEN_HAP;
 int g_tokenVerifyResult = 0;
 namespace OHOS {
 namespace Security {
diff --git a/test/unittest/loopevent/loopserver_unittest.cpp b/test/unittest/loopevent/loopserver_unittest.cpp
index d44779d5f8071c5fdaaec0bc5a5b98c7a757f4b5..d43d01738de0d79d201e9e9481d5d7b1350fb504 100644
--- a/test/unittest/loopevent/loopserver_unittest.cpp
+++ b/test/unittest/loopevent/loopserver_unittest.cpp
@@ -16,6 +16,7 @@
 #include <gtest/gtest.h>
 #include <thread>
 #include <sys/eventfd.h>
+#include <cstdarg>
 
 #include "begetctl.h"
 #include "cJSON.h"
@@ -62,7 +63,8 @@ static void DecodeMessage(const char *buffer, size_t nread, uint32_t &cmd)
     return;
 }
 
-static void SendMessage(const LoopHandle loopHandle, const TaskHandle taskHandle, const char *message, ...)
+template<typename... Args>
+static void SendMessage(const LoopHandle loopHandle, const TaskHandle taskHandle, const char *message, Args... args)
 {
     uint32_t bufferSize = 1024; // 1024 buffer size
     BufferHandle handle = LE_CreateBuffer(loopHandle, bufferSize);
@@ -96,21 +98,21 @@ static void TestOnReceiveRequest(const TaskHandle task, const uint8_t *buffer, u
     if (buffer == nullptr) {
         return;
     }
-    printf("Server receive message %s \n", reinterpret_cast<const char *>(buffer));
+    printf("Server receive message %s \n", static_cast<const char *>(buffer));
     uint32_t cmd = 0;
-    DecodeMessage(reinterpret_cast<const char *>(buffer), nread, cmd);
-    SendMessage(g_loopServer_, task, reinterpret_cast<const char *>(buffer));
+    DecodeMessage(static_cast<const char *>(buffer), nread, cmd);
+    SendMessage(g_loopServer_, task, static_cast<const char *>(buffer));
 }
 
 static void TestClientOnReceiveRequest(const TaskHandle task, const uint8_t *buffer, uint32_t nread)
 {
-    printf("Client receive message %s \n", reinterpret_cast<const char *>(buffer));
+    printf("Client receive message %s \n", static_cast<const char *>(buffer));
     EXPECT_NE(buffer, nullptr);
     if (buffer == nullptr) {
         return;
     }
     uint32_t cmd = 0;
-    DecodeMessage(reinterpret_cast<const char *>(buffer), nread, cmd);
+    DecodeMessage(static_cast<const char *>(buffer), nread, cmd);
     if (cmd == 5 || cmd == 2) { // 2 5 close server
         LE_StopLoop(g_loopClient_);
     }
@@ -130,7 +132,7 @@ static void TestSendMessageComplete(const TaskHandle taskHandle, BufferHandle ha
     uint32_t bufferSize = 1024; // 1024 buffer size
     char *buffer = (char *)LE_GetBufferInfo(handle, nullptr, &bufferSize);
     uint32_t cmd = 0;
-    DecodeMessage(reinterpret_cast<const char *>(buffer), bufferSize, cmd);
+    DecodeMessage(static_cast<const char *>(buffer), bufferSize, cmd);
     if (cmd == 5) { // 5 close server
         LE_StopLoop(g_loopServer_);
     }
diff --git a/test/unittest/param/param_shell_unittest.cpp b/test/unittest/param/param_shell_unittest.cpp
index bf0af31ca89baab94ef1725d86898ff6cf82afee..35afb7ee08d9c0dfae4c16941542de418e889941 100644
--- a/test/unittest/param/param_shell_unittest.cpp
+++ b/test/unittest/param/param_shell_unittest.cpp
@@ -213,6 +213,5 @@ HWTEST_F(ParamShellUnitTest, TestParamShellcmd2, TestSize.Level1)
     BShellEnvLoop(nullptr);
     BShellEnvErrString(GetShellHandle(), 1);
     BShellEnvOutputResult(GetShellHandle(), 1);
-
 }
 }  // namespace init_ut
diff --git a/test/unittest/param/param_stub.h b/test/unittest/param/param_stub.h
index 59dd3eaca44bf64bbd9be9a830d10f6cc528b40b..8c7817caccd62a37c2376c48bedb370b10dba3cb 100644
--- a/test/unittest/param/param_stub.h
+++ b/test/unittest/param/param_stub.h
@@ -76,4 +76,4 @@ ParamLabelIndex *TestGetParamLabelIndex(const char *name);
 }
 #endif
 #endif
-#endif  // PARAM_TEST_STUB_
\ No newline at end of file
+#endif  // PARAM_TEST_STUB_